Method and apparatus for fabricating quantum dot functional structure, quantum dot functional structure, and optically functioning device

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United States of America Patent

PATENT NO 6648975
APP PUB NO 20010031564A1
SERIAL NO

09784300

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Abstract

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The present invention is to fabricate a quantum dot functional structure having ultra-fine particles homogeneously distributed in a transparent medium by efficiently fabricating high-purity ultra-fine particles having a single particle diameter and uniform structure and depositing the ultra-fine particles onto a substrate in conjunction with the transparent medium. For these purposes, an apparatus for fabricating a quantum dot functional structure is provided. The apparatus comprises: an ultra-fine particle generating chamber for generating high-purity ultra-fine particles by exciting a semiconductor target with pulsed laser light in a low-pressure rare gas atmosphere, and then by allowing the semiconductor target to be detached or ejected by ablation reaction and condensed and grown in the gas; an ultra-fine particle classifying chamber for classifying the ultra-file particles; a depositing chamber for depositing the high-purity semiconductor ultra-fine particles and the transparent medium by exciting a transparent medium target with excimer laser light at the same time or alternately when the high-purity semiconductor ultra-fine particles are collected onto the substrate, and by collecting the substance generated through ablation reaction onto the substrate; and a carrier gas exhaust system.

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Patent Owner(s)

Patent OwnerAddress
MATSUSHITA ELECTRIC INDUSTRIAL CO LTDOSAKA JAPAN OSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aya, Nobuhiro Tsukuba, JP 3 27
Makino, Toshiharu Kawasaki, JP 34 360
Seto, Takafumi Tsukuba, JP 9 53
Suzuki, Nobuyasu Kawasaki, JP 58 846
Yamada, Yuka Kawasaki, JP 110 1211
Yoshida, Takehito Kawasaki, JP 25 496

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